/*
 *  Copyright (C) 2006 George Staikos <staikos@kde.org>
 *  Copyright (C) 2006 Alexey Proskuryakov <ap@nypop.com>
 *  Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Library General Public License for more details.
 *
 *  You should have received a copy of the GNU Library General Public License
 *  along with this library; see the file COPYING.LIB.  If not, write to
 *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA 02110-1301, USA.
 *
 */

#ifndef SKY_ENGINE_WTF_UNICODE_ICU_UNICODEICU_H_
#define SKY_ENGINE_WTF_UNICODE_ICU_UNICODEICU_H_

#include <unicode/uchar.h>
#include <unicode/ustring.h>

namespace WTF {

namespace Unicode {

enum Direction {
  LeftToRight = U_LEFT_TO_RIGHT,
  RightToLeft = U_RIGHT_TO_LEFT,
  EuropeanNumber = U_EUROPEAN_NUMBER,
  EuropeanNumberSeparator = U_EUROPEAN_NUMBER_SEPARATOR,
  EuropeanNumberTerminator = U_EUROPEAN_NUMBER_TERMINATOR,
  ArabicNumber = U_ARABIC_NUMBER,
  CommonNumberSeparator = U_COMMON_NUMBER_SEPARATOR,
  BlockSeparator = U_BLOCK_SEPARATOR,
  SegmentSeparator = U_SEGMENT_SEPARATOR,
  WhiteSpaceNeutral = U_WHITE_SPACE_NEUTRAL,
  OtherNeutral = U_OTHER_NEUTRAL,
  LeftToRightEmbedding = U_LEFT_TO_RIGHT_EMBEDDING,
  LeftToRightOverride = U_LEFT_TO_RIGHT_OVERRIDE,
  RightToLeftArabic = U_RIGHT_TO_LEFT_ARABIC,
  RightToLeftEmbedding = U_RIGHT_TO_LEFT_EMBEDDING,
  RightToLeftOverride = U_RIGHT_TO_LEFT_OVERRIDE,
  PopDirectionalFormat = U_POP_DIRECTIONAL_FORMAT,
  NonSpacingMark = U_DIR_NON_SPACING_MARK,
  BoundaryNeutral = U_BOUNDARY_NEUTRAL
};

enum DecompositionType {
  DecompositionNone = U_DT_NONE,
  DecompositionCanonical = U_DT_CANONICAL,
  DecompositionCompat = U_DT_COMPAT,
  DecompositionCircle = U_DT_CIRCLE,
  DecompositionFinal = U_DT_FINAL,
  DecompositionFont = U_DT_FONT,
  DecompositionFraction = U_DT_FRACTION,
  DecompositionInitial = U_DT_INITIAL,
  DecompositionIsolated = U_DT_ISOLATED,
  DecompositionMedial = U_DT_MEDIAL,
  DecompositionNarrow = U_DT_NARROW,
  DecompositionNoBreak = U_DT_NOBREAK,
  DecompositionSmall = U_DT_SMALL,
  DecompositionSquare = U_DT_SQUARE,
  DecompositionSub = U_DT_SUB,
  DecompositionSuper = U_DT_SUPER,
  DecompositionVertical = U_DT_VERTICAL,
  DecompositionWide = U_DT_WIDE,
};

enum CharCategory {
  NoCategory = 0,
  Other_NotAssigned = U_MASK(U_GENERAL_OTHER_TYPES),
  Letter_Uppercase = U_MASK(U_UPPERCASE_LETTER),
  Letter_Lowercase = U_MASK(U_LOWERCASE_LETTER),
  Letter_Titlecase = U_MASK(U_TITLECASE_LETTER),
  Letter_Modifier = U_MASK(U_MODIFIER_LETTER),
  Letter_Other = U_MASK(U_OTHER_LETTER),

  Mark_NonSpacing = U_MASK(U_NON_SPACING_MARK),
  Mark_Enclosing = U_MASK(U_ENCLOSING_MARK),
  Mark_SpacingCombining = U_MASK(U_COMBINING_SPACING_MARK),

  Number_DecimalDigit = U_MASK(U_DECIMAL_DIGIT_NUMBER),
  Number_Letter = U_MASK(U_LETTER_NUMBER),
  Number_Other = U_MASK(U_OTHER_NUMBER),

  Separator_Space = U_MASK(U_SPACE_SEPARATOR),
  Separator_Line = U_MASK(U_LINE_SEPARATOR),
  Separator_Paragraph = U_MASK(U_PARAGRAPH_SEPARATOR),

  Other_Control = U_MASK(U_CONTROL_CHAR),
  Other_Format = U_MASK(U_FORMAT_CHAR),
  Other_PrivateUse = U_MASK(U_PRIVATE_USE_CHAR),
  Other_Surrogate = U_MASK(U_SURROGATE),

  Punctuation_Dash = U_MASK(U_DASH_PUNCTUATION),
  Punctuation_Open = U_MASK(U_START_PUNCTUATION),
  Punctuation_Close = U_MASK(U_END_PUNCTUATION),
  Punctuation_Connector = U_MASK(U_CONNECTOR_PUNCTUATION),
  Punctuation_Other = U_MASK(U_OTHER_PUNCTUATION),

  Symbol_Math = U_MASK(U_MATH_SYMBOL),
  Symbol_Currency = U_MASK(U_CURRENCY_SYMBOL),
  Symbol_Modifier = U_MASK(U_MODIFIER_SYMBOL),
  Symbol_Other = U_MASK(U_OTHER_SYMBOL),

  Punctuation_InitialQuote = U_MASK(U_INITIAL_PUNCTUATION),
  Punctuation_FinalQuote = U_MASK(U_FINAL_PUNCTUATION)
};

inline UChar32 foldCase(UChar32 c) {
  return u_foldCase(c, U_FOLD_CASE_DEFAULT);
}

inline int foldCase(UChar* result,
                    int resultLength,
                    const UChar* src,
                    int srcLength,
                    bool* error) {
  UErrorCode status = U_ZERO_ERROR;
  int realLength = u_strFoldCase(result, resultLength, src, srcLength,
                                 U_FOLD_CASE_DEFAULT, &status);
  *error = !U_SUCCESS(status);
  return realLength;
}

inline int toLower(UChar* result,
                   int resultLength,
                   const UChar* src,
                   int srcLength,
                   bool* error) {
  UErrorCode status = U_ZERO_ERROR;
  int realLength =
      u_strToLower(result, resultLength, src, srcLength, "", &status);
  *error = !!U_FAILURE(status);
  return realLength;
}

inline UChar32 toLower(UChar32 c) {
  return u_tolower(c);
}

inline UChar32 toUpper(UChar32 c) {
  return u_toupper(c);
}

inline int toUpper(UChar* result,
                   int resultLength,
                   const UChar* src,
                   int srcLength,
                   bool* error) {
  UErrorCode status = U_ZERO_ERROR;
  int realLength =
      u_strToUpper(result, resultLength, src, srcLength, "", &status);
  *error = !!U_FAILURE(status);
  return realLength;
}

inline UChar32 toTitleCase(UChar32 c) {
  return u_totitle(c);
}

inline bool isArabicChar(UChar32 c) {
  return ublock_getCode(c) == UBLOCK_ARABIC;
}

inline bool isAlphanumeric(UChar32 c) {
  return u_isalnum(c);
}

inline bool isSeparatorSpace(UChar32 c) {
  return u_charType(c) == U_SPACE_SEPARATOR;
}

inline bool isPrintableChar(UChar32 c) {
  return !!u_isprint(c);
}

inline bool isPunct(UChar32 c) {
  return !!u_ispunct(c);
}

inline bool hasLineBreakingPropertyComplexContext(UChar32 c) {
  return u_getIntPropertyValue(c, UCHAR_LINE_BREAK) == U_LB_COMPLEX_CONTEXT;
}

inline UChar32 mirroredChar(UChar32 c) {
  return u_charMirror(c);
}

inline CharCategory category(UChar32 c) {
  return static_cast<CharCategory>(U_GET_GC_MASK(c));
}

inline Direction direction(UChar32 c) {
  return static_cast<Direction>(u_charDirection(c));
}

inline bool isLower(UChar32 c) {
  return !!u_islower(c);
}

inline uint8_t combiningClass(UChar32 c) {
  return u_getCombiningClass(c);
}

inline DecompositionType decompositionType(UChar32 c) {
  return static_cast<DecompositionType>(
      u_getIntPropertyValue(c, UCHAR_DECOMPOSITION_TYPE));
}

inline int umemcasecmp(const UChar* a, const UChar* b, int len) {
  return u_memcasecmp(a, b, len, U_FOLD_CASE_DEFAULT);
}

}  // namespace Unicode

}  // namespace WTF

#endif  // SKY_ENGINE_WTF_UNICODE_ICU_UNICODEICU_H_
